I spent the better part of the last few months looking for appropriate office space to hold a team of developers. We estimated we'd need about 325 m² for 18 people. For some reason we could not find appropriate space. I therefore found an Evanston city consultant's recent report fascinating:
Consultant Marty Stern of U.S. Equities Realty says, in a report to be presented to the city's Economic Development Committee Wednesday night, that nine different generally suitable Class B buildings have a total of 50,072 square feet of vacant space.... In addition, Stern says there is about 141,000 square feet of more expensive Class A space available downtown and 21,000 square feet of less expensive Class C space, most of it downtown.
That comes to 19,700 m²—almost five acres of office space. Slightly more than we needed, of course, but probably workable.